Can someone explain to me what the key differences are between the early (2007) BR350's and Bisons? The current Bison has many noticeable differences from a BR but the older ones seem exactly the same. I've noticed that some of these early Bison's say BR350 on them as well. Was the Bison a package available for the BR350 and if so what did it add?

Hmmm, trying to remember that one. The last mountain I was at had one and I'm trying to remember what they were. Something makes me think it had the Rexroth pumps instead of the Sauer-Dansforth, and maybe different planetary drives. Ours had a Xenon lighting package as well. I could be mistaken though, it's been awhile.

We still have a 2007 "Bison". Actually, I believe when it came out it was called a 350R. It was basically a 350 with Rexroth drive system and the BonFig hubs. Ours has the xenon lighting on it as well. I can't remember if that was standard or an option.